20313322306 has 4 divisors (see below), whose sum is σ = 30469983462. Its totient is φ = 10156661152.

The previous prime is 20313322279. The next prime is 20313322319. The reversal of 20313322306 is 60322331302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14860829025 + 5452493281 = 121905^2 + 73841^2 .

It is a super-3 number, since 3×20313322306³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5078330575 + ... + 5078330578.

Almost surely, 2^20313322306 is an apocalyptic number.

20313322306 is a deficient number, since it is larger than the sum of its proper divisors (10156661156).

20313322306 is a wasteful number, since it uses less digits than its factorization.

20313322306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10156661155.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 20313322306 its reverse (60322331302), we get a palindrome (80635653608).

The spelling of 20313322306 in words is "twenty billion, three hundred thirteen million, three hundred twenty-two thousand, three hundred six".